GB453517A - A method and apparatus for the treatment of alkali-metal amalgam obtained in electrolytic cells having mercury cathodes - Google Patents
A method and apparatus for the treatment of alkali-metal amalgam obtained in electrolytic cells having mercury cathodesInfo
- Publication number
- GB453517A GB453517A GB7802/35A GB780235A GB453517A GB 453517 A GB453517 A GB 453517A GB 7802/35 A GB7802/35 A GB 7802/35A GB 780235 A GB780235 A GB 780235A GB 453517 A GB453517 A GB 453517A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amalgam
- lye
- alkali
- electrolytic cell
- decomposition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
- C25B1/36—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in mercury cathode cells
- C25B1/42—Decomposition of amalgams
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
<PICT:0453517/III/1> Alkali metal amalgam produced in an electrolytic cell is passed through a succession of vessels containing alkali lye at a temperature of 40--120 DEG C. in which the amalgam is decomposed with formation of caustic alkali, the reaction being assisted by the action of contact electrodes of graphite resting on the amalgam. Heating may be effected by a hot water or steam jacket, by electricity or by burning of the hydrogen produced in the decomposition. The drawing shows the first of a succession of heat-insulated metal chambers through which the amalgam flows for decomposition by means of contact electrodes d. Amalgam flows to the next chamber through a seal l in which is immersed a partition k provided with a bent pipe m whereby the lye traverses the chambers in the reverse direction to the amalgam. A heating jacket b is provided at the bottom or at the bottom and sides. Concentrated lye is drawn off at o and hydrogen at g. Less concentrated lye may be drawn off from the other cells if desired. The last decomposition chamber of the series may be cooled instead of heated in order that the mercury may re-enter the electrolytic cell in a cool condition. Alternatively, the cathode contact head of the electrolytic cell may be cooled.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR783164T | 1934-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB453517A true GB453517A (en) | 1936-09-14 |
Family
ID=9214633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7802/35A Expired GB453517A (en) | 1934-03-13 | 1935-03-13 | A method and apparatus for the treatment of alkali-metal amalgam obtained in electrolytic cells having mercury cathodes |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR783164A (en) |
GB (1) | GB453517A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2588469A (en) * | 1944-02-18 | 1952-03-11 | Solvay | Process for the production of high concentration alkaline lyes |
US2610908A (en) * | 1946-03-09 | 1952-09-16 | Solvay | Process of and apparatus for producing caustic solutions of high concentration |
US2748072A (en) * | 1952-07-02 | 1956-05-29 | Rumianca Spa | Apparatus for producing alkali metal hydroxide |
US2815318A (en) * | 1952-07-30 | 1957-12-03 | Ici Ltd | Production of caustic soda |
US2872393A (en) * | 1954-12-03 | 1959-02-03 | Olin Mathieson | Production of lithium hydroxide |
-
1934
- 1934-03-13 FR FR783164D patent/FR783164A/en not_active Expired
-
1935
- 1935-03-13 GB GB7802/35A patent/GB453517A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2588469A (en) * | 1944-02-18 | 1952-03-11 | Solvay | Process for the production of high concentration alkaline lyes |
US2610908A (en) * | 1946-03-09 | 1952-09-16 | Solvay | Process of and apparatus for producing caustic solutions of high concentration |
US2748072A (en) * | 1952-07-02 | 1956-05-29 | Rumianca Spa | Apparatus for producing alkali metal hydroxide |
US2815318A (en) * | 1952-07-30 | 1957-12-03 | Ici Ltd | Production of caustic soda |
US2872393A (en) * | 1954-12-03 | 1959-02-03 | Olin Mathieson | Production of lithium hydroxide |
Also Published As
Publication number | Publication date |
---|---|
FR783164A (en) | 1935-07-09 |
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